How strong is this glue? Can it be used to reapir a crack in 1 galon water reservior?

I would think so, I used it on a conical fermenter for my beer brewing and its worked fine for a few years now. No major pressure on it, just 7 gallons of product.

Can it be applied to a jar to store food in?

I'm not sure, I can tell you its ratted Food Safe. I used it to seal a crack in a conical fermentor I use for home brewed beer and cider. worked fine and left no taste that I could tell.

(white) what is the texture of the surface after cured? smooth? gritty? matte? shiny? how can it be made as smooth as possible?

To make as smooth as possible: after you apply the stuff, spray some water with soap (detergent/shampoo works) and smooth it out with your fingers... this method works great for corners and joints where a bead is required.... will probably make a not so great job on a flat surface :-)

is it dishwasher safe?

The package says its temperature range is -62ºF to 350ºF. I don't know how hot a dishwasher gets, but it might be ok on the top shelf.

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Food Grade NSF RTV Silicone Sealant Adhesive White 2.8 Ounce (1)

Food Grade NSF RTV Silicone Sealant Adhesive White 2.8 Ounce (1)

Product ID: 28560946

Details

Brand
Sil-Bond
Item Form
Ounce Paste
Material
Silicone
Specific Uses For Product
Repair

✅NSF & USDA food grade

🔥350°F max temp

🧴2.8 fl oz precision tube

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Description

🛠️ Seal smart, live fearless — the ultimate food-grade silicone adhesive!

DURABLE FLEXIBLE - Resists cracking, moisture, ozone, vibration & weathering for long-lasting performance
PRECISION APPLICATION - Screw-on removable nozzle ensures mess-free, exact sealant placement every time
UNIVERSAL SURFACE BONDING - Adheres flawlessly to metal, glass, plastic, rubber & ceramics without primer
CERTIFIED FOOD SAFE SEALANT - NSF/ANSI Standard 51 & USDA approved for worry-free kitchen use
EXTREME TEMPERATURE TOUGHNESS - Withstands -62°F to 350°F constant heat—perfect for any environment

Sil-Bond 4500 is a premium 100% RTV silicone sealant in a convenient 2.8 oz tube, NSF and USDA certified for food safety. Engineered to endure extreme temperatures up to 350°F, moisture, ozone, and vibration, it bonds securely to a wide range of materials including metal, glass, and plastic. Ideal for professional-grade repairs and sealing tasks where durability and safety are non-negotiable.

Specifications

ASIN	B01F9HCISU
Best Sellers Rank	#13,693 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #42 in Silicone Adhesives
Brand Name	Sil-Bond
Color	white
Compatible Material	Aluminum, Glass, Metal, Plastic, Rubber
Container Type	Tube
Customer Reviews	4.5 4.5 out of 5 stars (962)
Full Cure Time	24 Hours
Item Form	Ounce,Paste
Item Package Quantity	1
Item Weight	0.01 Ounces
Manufacturer	Silco Incorporated
Material Type	Silicone
Model	Sil Bond 4500
Number of Pieces	1
Other Special Features of the Product	Extreme Temperature Resistance, Moisture Resistance, Ozone Resistance, Vibration Resistance, Weathering Resistance
Part Number	43338-2287
Specific Uses For Product	Repair
Unit Count	1.00 Count
Viscosity Level	Medium to High
Volume	2.8 Fluid Ounces
Water Resistance Level	Water Resistant

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